Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.
| Issuer | % of Class | Filed | |||
|---|---|---|---|---|---|
|
Dianthus Therapeutics, Inc.
13G/A
Amendment 4
DNTH · 252828108
|
6.0% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 6.0% | ||||
| Peter Kolchinsky | 6.0% | ||||
| Rajeev Shah | 6.0% | ||||
| RA Capital Healthcare Fund, L.P. | 6.0% | ||||
|
Contineum Therapeutics, Inc.
13G/A
Amendment 1
CTNM · 21217B100
|
7.2% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 7.2% | ||||
| Peter Kolchinsky | 7.2% | ||||
| Rajeev Shah | 7.2% | ||||
| RA Capital Healthcare Fund, L.P. | 7.2% | ||||
|
Avalo Therapeutics, Inc.
13G/A
Amendment 3
AVTX · 05338F306
|
9.9% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Arcellx, Inc.
13G/A
Amendment 1
ACLX · 03940C100
|
2.2% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 2.2% | ||||
| Peter Kolchinsky | 2.2% | ||||
| Rajeev Shah | 2.2% | ||||
| RA Capital Healthcare Fund, L.P. | 2.2% | ||||
|
Adicet Bio, Inc.
13G/A
Amendment 2
ACET · 007002207
|
9.9% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
4D Molecular Therapeutics, Inc.
13G/A
Amendment 5
FDMT · 35104E100
|
9.9% |
2/17/2026
Event 12/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
ALX Oncology Holdings Inc.
13G
ALXO · 00166B105
|
9.9% |
2/9/2026
Event 2/2/2026
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Helix Acquisition Corp. III
13G
HLXC · G4444S107
|
7.0% |
2/2/2026
Event 1/26/2026
|
|||
| RA Capital Management, L.P. | 7.0% | ||||
| Peter Kolchinsky | 7.0% | ||||
| Rajeev Shah | 7.0% | ||||
| RA Capital Healthcare Fund, L.P. | 7.0% | ||||
|
Century Therapeutics, Inc.
13G
IPSC · 15673T100
|
9.9% |
1/16/2026
Event 1/9/2026
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Cidara Therapeutics, Inc.
13D/A
Amendment 6
CDTX · 171757206
|
0% |
1/9/2026
Event 1/7/2026
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Disc Medicine, Inc.
13G
IRON · 254604101
|
5.9% |
1/7/2026
Event 12/30/2025
|
|||
| RA Capital Management, L.P. | 5.9% | ||||
| Peter Kolchinsky | 5.9% | ||||
| Rajeev Shah | 5.9% | ||||
| RA Capital Healthcare Fund, L.P. | 5.9% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 11
VOR · 929033207
|
14.0% |
12/18/2025
Event 12/18/2025
|
|||
| RA Capital Management, L.P. | 14.0% | ||||
| Peter Kolchinsky | 14.0% | ||||
| Rajeev Shah | 14.0% | ||||
| RA Capital Healthcare Fund, L.P. | 14.0% | ||||
|
Ovid Therapeutics Inc.
13G
OVID · 690469101
|
9.9% |
12/18/2025
Event 12/11/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Rezolute, Inc.
13G
RZLT · 76200L309
|
9.9% |
12/18/2025
Event 12/11/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Climb Bio, Inc.
13D/A
Amendment 8
CLYM · 28658R106
|
33.0% |
12/15/2025
Event 12/11/2025
|
|||
| RA Capital Management, L.P. | 33.0% | ||||
| Peter Kolchinsky | 33.0% | ||||
| Rajeev Shah | 33.0% | ||||
| RA Capital Healthcare Fund, L.P. | 23.0% | ||||
| RA Capital Nexus Fund III, L.P. | 11.2% | ||||
| Sera Medicines, LLC | 5.2% | ||||
|
Wave Life Sciences Ltd.
13D/A
Amendment 8
WVE · Y95308105
|
13.4% |
12/15/2025
Event 12/11/2025
|
|||
| RA Capital Management, L.P. | 13.4% | ||||
| Peter Kolchinsky | 13.4% | ||||
| Rajeev Shah | 13.4% | ||||
| RA Capital Healthcare Fund, L.P. | 13.3% | ||||
|
Perceptive Capital Solutions Corp
13D
PCSC · G70077105
|
8.4% |
12/12/2025
Event 12/5/2025
|
|||
| RA Capital Management, L.P. | 8.4% | ||||
| Peter Kolchinsky | 8.4% | ||||
| Rajeev Shah | 8.4% | ||||
| RA Capital Healthcare Fund, L.P. | 8.4% | ||||
|
Fulcrum Therapeutics, Inc.
13G/A
Amendment 5
FULC · 359616109
|
11.2% |
12/10/2025
Event 12/8/2025
|
|||
| RA Capital Management, L.P. | 11.2% | ||||
| Peter Kolchinsky | 11.2% | ||||
| Rajeev Shah | 11.2% | ||||
| RA Capital Healthcare Fund, L.P. | 11.2% | ||||
|
Benitec Biopharma Inc.
13G
BNTC · 08205P209
|
5.5% |
12/3/2025
Event 11/7/2025
|
|||
| RA Capital Management, L.P. | 5.5% | ||||
| Peter Kolchinsky | 5.5% | ||||
| Rajeev Shah | 5.5% | ||||
| RA Capital Healthcare Fund, L.P. | 5.5% | ||||
|
Evommune, Inc.
13D
EVMN · 30054Y107
|
11.0% |
11/17/2025
Event 11/7/2025
|
|||
| RA Capital Management, L.P. | 11.0% | ||||
| Peter Kolchinsky | 11.0% | ||||
| Rajeev Shah | 11.0% | ||||
| RA Capital Healthcare Fund, L.P. | 8.5% | ||||
|
Cidara Therapeutics, Inc.
13D/A
Amendment 5
CDTX · 171757206
|
10.7% |
11/17/2025
Event 11/13/2025
|
|||
| RA Capital Management, L.P. | 10.7% | ||||
| Peter Kolchinsky | 10.7% | ||||
| Rajeev Shah | 10.7% | ||||
| RA Capital Healthcare Fund, L.P. | 10.7% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 10
VOR · 929033207
|
9.9% |
11/14/2025
Event 11/12/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Unicycive Therapeutics, Inc.
13G/A
Amendment 5
UNCY · 90466Y202
|
9.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Tourmaline Bio, Inc.
13G/A
Amendment 2
TRML · 89157D105
|
0% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Taysha Gene Therapies, Inc.
13G/A
Amendment 4
TSHA · 877619106
|
9.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
RxSight, Inc.
13G/A
Amendment 3
RXST · 78349D107
|
0% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Monopar Therapeutics Inc.
13G/A
Amendment 2
MNPR · 61023L207
|
9.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Edgewise Therapeutics, Inc.
13G/A
Amendment 1
EWTX · 28036F105
|
9.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Dyne Therapeutics, Inc.
13G/A
Amendment 3
DYN · 26818M108
|
0% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Dianthus Therapeutics, Inc.
13G/A
Amendment 3
DNTH · 252828108
|
9.5% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.5% | ||||
| Peter Kolchinsky | 9.5% | ||||
| Rajeev Shah | 9.5% | ||||
| RA Capital Healthcare Fund, L.P. | 9.5% | ||||
|
Avidity Biosciences, Inc.
13G/A
Amendment 2
RNAM · 05370A108
|
5.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 5.9% | ||||
| Peter Kolchinsky | 5.9% | ||||
| Rajeev Shah | 5.9% | ||||
| RA Capital Healthcare Fund, L.P. | 5.9% | ||||
|
Avalo Therapeutics, Inc.
13G/A
Amendment 2
AVTX · 05338F306
|
9.9% |
11/14/2025
Event 9/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Wave Life Sciences Ltd.
13D/A
Amendment 7
WVE · Y95308105
|
14.6% |
11/13/2025
Event 11/11/2025
|
|||
| RA Capital Management, L.P. | 14.6% | ||||
| Peter Kolchinsky | 14.6% | ||||
| Rajeev Shah | 14.6% | ||||
| RA Capital Healthcare Fund, L.P. | 14.5% | ||||
|
BioCryst Pharmaceuticals, Inc.
13G
BCRX · 09058V103
|
7.3% |
11/12/2025
Event 11/4/2025
|
|||
| RA Capital Management, L.P. | 7.3% | ||||
| Peter Kolchinsky | 7.3% | ||||
| Rajeev Shah | 7.3% | ||||
| RA Capital Healthcare Fund, L.P. | 7.3% | ||||
|
Cidara Therapeutics, Inc.
13D/A
Amendment 4
CDTX · 171757206
|
10.7% |
11/10/2025
Event 11/6/2025
|
|||
| RA Capital Management, L.P. | 10.7% | ||||
| Peter Kolchinsky | 10.7% | ||||
| Rajeev Shah | 10.7% | ||||
| RA Capital Healthcare Fund, L.P. | 10.7% | ||||
|
Sionna Therapeutics, Inc.
13D/A
Amendment 1
SION · 829401108
|
22.6% |
11/7/2025
Event 11/5/2025
|
|||
| RA Capital Management, L.P. | 22.6% | ||||
| Peter Kolchinsky | 22.6% | ||||
| Rajeev Shah | 22.6% | ||||
| RA Capital Healthcare Fund, L.P. | 15.5% | ||||
| RA Capital Nexus Fund III, L.P. | 5.0% | ||||
|
Lenz Therapeutics, Inc.
13D/A
Amendment 2
LENZ · 52635N103
|
13.6% |
11/7/2025
Event 11/5/2025
|
|||
| RA Capital Management, L.P. | 13.6% | ||||
| Peter Kolchinsky | 13.6% | ||||
| Rajeev Shah | 13.6% | ||||
| RA Capital Healthcare Fund, L.P. | 10.8% | ||||
|
Werewolf Therapeutics, Inc.
13D/A
Amendment 7
HOWL · 95075A107
|
13.8% |
11/6/2025
Event 11/4/2025
|
|||
| RA Capital Management, L.P. | 13.8% | ||||
| Peter Kolchinsky | 13.8% | ||||
| Rajeev Shah | 13.8% | ||||
| RA Capital Healthcare Fund, L.P. | 12.9% | ||||
|
89BIO, Inc.
13D/A
Amendment 14
ETNB · 282559103
|
0% |
11/3/2025
Event 10/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 9
VOR · 929033207
|
11.5% |
10/30/2025
Event 10/28/2025
|
|||
| RA Capital Management, L.P. | 11.5% | ||||
| Peter Kolchinsky | 11.5% | ||||
| Rajeev Shah | 11.5% | ||||
| RA Capital Healthcare Fund, L.P. | 11.4% | ||||
|
Rani Therapeutics Holdings, Inc.
13G
RANI · 753018100
|
9.9% |
10/30/2025
Event 10/23/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 8
VOR · 929033207
|
17.3% |
10/27/2025
Event 10/23/2025
|
|||
| RA Capital Management, L.P. | 17.3% | ||||
| Peter Kolchinsky | 17.3% | ||||
| Rajeev Shah | 17.3% | ||||
| RA Capital Healthcare Fund, L.P. | 17.2% | ||||
|
Lexeo Therapeutics, Inc.
13G
LXEO · 52886X107
|
6.9% |
10/27/2025
Event 10/20/2025
|
|||
| RA Capital Management, L.P. | 6.9% | ||||
| Peter Kolchinsky | 6.9% | ||||
| Rajeev Shah | 6.9% | ||||
| RA Capital Healthcare Fund, L.P. | 6.9% | ||||
|
C4 Therapeutics, Inc.
13G
CCCC · 12529R107
|
9.9% |
10/24/2025
Event 10/17/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 7
VOR · 929033207
|
20.9% |
10/20/2025
Event 10/16/2025
|
|||
| RA Capital Management, L.P. | 20.9% | ||||
| Peter Kolchinsky | 20.9% | ||||
| Rajeev Shah | 20.9% | ||||
| RA Capital Healthcare Fund, L.P. | 20.8% | ||||
|
Jade Biosciences, Inc.
13G
JBIO · 008064206
|
7.0% |
10/16/2025
Event 10/8/2025
|
|||
| RA Capital Management, L.P. | 7.0% | ||||
| Peter Kolchinsky | 7.0% | ||||
| Rajeev Shah | 7.0% | ||||
| RA Capital Healthcare Fund, L.P. | 7.0% | ||||
|
Palisade Bio, Inc.
13G
PALI · 696389402
|
9.9% |
10/9/2025
Event 10/2/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
SAB Biotherapeutics, Inc.
13D
SABS · 78397T202
|
9.9% |
10/3/2025
Event 9/26/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Ars Pharmaceuticals, Inc.
13D/A
Amendment 3
SPRY · 82835W108
|
11.1% |
10/1/2025
Event 9/29/2025
|
|||
| RA Capital Management, L.P. | 11.1% | ||||
| Peter Kolchinsky | 11.1% | ||||
| Rajeev Shah | 11.1% | ||||
| RA Capital Healthcare Fund, L.P. | 10.1% | ||||
|
Pepgen Inc.
13D/A
Amendment 4
PEPG · 713317105
|
29.2% |
9/30/2025
Event 9/26/2025
|
|||
| RA Capital Management, L.P. | 29.2% | ||||
| Peter Kolchinsky | 29.2% | ||||
| Rajeev Shah | 29.2% | ||||
| RA Capital Healthcare Fund, L.P. | 27.0% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 6
VOR · 929033207
|
29.0% |
9/19/2025
Event 9/17/2025
|
|||
| RA Capital Management, L.P. | 29.0% | ||||
| Peter Kolchinsky | 29.0% | ||||
| Rajeev Shah | 29.0% | ||||
| RA Capital Healthcare Fund, L.P. | 27.6% | ||||
|
LB Pharmaceuticals Inc
13G
LBRX · 50180M108
|
7.5% |
9/19/2025
Event 9/12/2025
|
|||
| RA Capital Management, L.P. | 7.5% | ||||
| Peter Kolchinsky | 7.5% | ||||
| Rajeev Shah | 7.5% | ||||
| RA Capital Healthcare Fund, L.P. | 7.5% | ||||
|
Mineralys Therapeutics, Inc.
13D/A
Amendment 3
MLYS · 603170101
|
9.9% |
9/8/2025
Event 9/4/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 7.5% | ||||
|
Invivyd, Inc.
13G
IVVD · 00534A102
|
9.9% |
8/29/2025
Event 8/22/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Adagio Medical Holdings, Inc.
13G/A
Amendment 4
ADGM · 00534B100
|
7.2% |
8/26/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 7.2% | ||||
| Peter Kolchinsky | 7.2% | ||||
| Rajeev Shah | 7.2% | ||||
| RA Capital Healthcare Fund, L.P. | 6.9% | ||||
|
CervoMed Inc.
13G/A
Amendment 3
CRVO · 15713L109
|
9.9% |
8/20/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Assembly Biosciences, Inc.
13G
ASMB · 045396207
|
9.5% |
8/18/2025
Event 8/11/2025
|
|||
| RA Capital Management, L.P. | 9.5% | ||||
| Peter Kolchinsky | 9.5% | ||||
| Rajeev Shah | 9.5% | ||||
| RA Capital Healthcare Fund, L.P. | 9.5% | ||||
|
Verona Pharma plc
13G/A
Amendment 7
VRNA · 925050106
|
0.7% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0.7% | ||||
| Peter Kolchinsky | 0.7% | ||||
| Rajeev Shah | 0.7% | ||||
| RA Capital Healthcare Fund, L.P. | 0.7% | ||||
|
Urogen Pharma Ltd.
13G/A
Amendment 4
URGN · M96088105
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Taysha Gene Therapies, Inc.
13G/A
Amendment 3
TSHA · 877619106
|
9.9% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Sutro Biopharma, Inc.
13G/A
Amendment 1
STRO · 869367102
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Sera Prognostics, Inc.
13G/A
Amendment 2
SERA · 81749D107
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Solid Biosciences Inc.
13D/A
Amendment 10
SLDB · 83422E204
|
9.9% |
8/14/2025
Event 8/12/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.8% | ||||
|
Rhythm Pharmaceuticals, Inc.
13G/A
Amendment 7
RYTM · 76243J105
|
8.7% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 8.7% | ||||
| Peter Kolchinsky | 8.7% | ||||
| Rajeev Shah | 8.7% | ||||
| RA Capital Healthcare Fund, L.P. | 8.7% | ||||
|
Protara Therapeutics, Inc.
13G/A
Amendment 2
TARA · 74365U107
|
4.9% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 4.9% | ||||
| Peter Kolchinsky | 4.9% | ||||
| Rajeev Shah | 4.9% | ||||
| RA Capital Healthcare Fund, L.P. | 4.9% | ||||
|
GH Research PLC
13G/A
Amendment 7
GHRS · G3855L106
|
12.4% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 12.4% | ||||
| Peter Kolchinsky | 12.4% | ||||
| Rajeev Shah | 12.4% | ||||
| RA Capital Healthcare Fund, L.P. | 12.1% | ||||
|
Day One Biopharmaceuticals, Inc.
13G/A
Amendment 4
DAWN · 23954D109
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
CervoMed Inc.
13G/A
Amendment 2
CRVO · 15713L109
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Boundless Bio, Inc.
13G/A
Amendment 1
BOLD · 10170A100
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Astria Therapeutics, Inc.
13G/A
Amendment 2
ATXS · 04635X102
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Alector, Inc.
13G/A
Amendment 1
ALEC · 014442107
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Adagio Medical Holdings, Inc.
13G/A
Amendment 3
ADGM · 00534B100
|
0% |
8/14/2025
Event 6/30/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Cidara Therapeutics, Inc.
13D/A
Amendment 3
CDTX · 171757206
|
13.3% |
8/11/2025
Event 8/7/2025
|
|||
| RA Capital Management, L.P. | 13.3% | ||||
| Peter Kolchinsky | 13.3% | ||||
| Rajeev Shah | 13.3% | ||||
| RA Capital Healthcare Fund, L.P. | 13.3% | ||||
|
Contineum Therapeutics, Inc.
13G
CTNM · 21217B100
|
9.9% |
7/25/2025
Event 7/18/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Cidara Therapeutics, Inc.
13D/A
Amendment 2
CDTX · 171757206
|
15.8% |
6/30/2025
Event 6/26/2025
|
|||
| RA Capital Management, L.P. | 15.8% | ||||
| Peter Kolchinsky | 15.8% | ||||
| Rajeev Shah | 15.8% | ||||
| RA Capital Healthcare Fund, L.P. | 15.8% | ||||
|
Vor Biopharma Inc.
13D/A
Amendment 5
VOR · 929033108
|
31.8% |
6/27/2025
Event 6/25/2025
|
|||
| RA Capital Management, L.P. | 31.8% | ||||
| Peter Kolchinsky | 31.8% | ||||
| Rajeev Shah | 31.8% | ||||
| RA Capital Healthcare Fund, L.P. | 30.3% | ||||
|
Tyra Biosciences, Inc.
13D/A
Amendment 5
TYRA · 90240B106
|
22.4% |
6/6/2025
Event 6/4/2025
|
|||
| RA Capital Management, L.P. | 22.4% | ||||
| Peter Kolchinsky | 22.4% | ||||
| Rajeev Shah | 22.4% | ||||
| RA Capital Healthcare Fund, L.P. | 18.6% | ||||
|
Iteos Therapeutics, Inc.
13D/A
Amendment 3
ITOS · 46565G104
|
4.9% |
5/19/2025
Event 5/15/2025
|
|||
| RA Capital Management, L.P. | 4.9% | ||||
| Peter Kolchinsky | 4.9% | ||||
| Rajeev Shah | 4.9% | ||||
| RA Capital Healthcare Fund, L.P. | 4.4% | ||||
|
Kura Oncology, Inc.
13G/A
Amendment 1
KURA · 50127T109
|
4.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 4.9% | ||||
| Peter Kolchinsky | 4.9% | ||||
| Rajeev Shah | 4.9% | ||||
| RA Capital Healthcare Fund, L.P. | 4.9% | ||||
|
Newamsterdam Pharma Company N.V.
13G/A
Amendment 5
NAMS · N62509109
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
GH Research PLC
13G/A
Amendment 6
GHRS · G3855L106
|
11.2% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 11.2% | ||||
| Peter Kolchinsky | 11.2% | ||||
| Rajeev Shah | 11.2% | ||||
| RA Capital Healthcare Fund, L.P. | 10.9% | ||||
|
Geron Corporation
13G/A
Amendment 5
GERN · 374163103
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Unicycive Therapeutics, Inc.
13G/A
Amendment 4
UNCY · 90466Y103
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Dyne Therapeutics, Inc.
13G/A
Amendment 2
DYN · 26818M108
|
8.5% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 8.5% | ||||
| Peter Kolchinsky | 8.5% | ||||
| Rajeev Shah | 8.5% | ||||
| RA Capital Healthcare Fund, L.P. | 8.5% | ||||
|
Surrozen, Inc.
13G/A
Amendment 1
SRZN · 86889P208
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Dianthus Therapeutics, Inc.
13G/A
Amendment 2
DNTH · 252828108
|
8.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 8.9% | ||||
| Peter Kolchinsky | 8.9% | ||||
| Rajeev Shah | 8.9% | ||||
| RA Capital Healthcare Fund, L.P. | 8.9% | ||||
|
Chimerix Inc
13G/A
Amendment 2
CMRX · 16934W106
|
0% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Urogen Pharma Ltd.
13G/A
Amendment 3
URGN · M96088105
|
7.0% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 7.0% | ||||
| Peter Kolchinsky | 7.0% | ||||
| Rajeev Shah | 7.0% | ||||
| RA Capital Healthcare Fund, L.P. | 7.0% | ||||
|
C4 Therapeutics, Inc.
13G/A
Amendment 1
CCCC · 12529R107
|
0% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 0% | ||||
| Peter Kolchinsky | 0% | ||||
| Rajeev Shah | 0% | ||||
| RA Capital Healthcare Fund, L.P. | 0% | ||||
|
Vaxcyte, Inc.
13G/A
Amendment 6
PCVX · 92243G108
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.3% | ||||
|
Bright Minds Biosciences Inc.
13G/A
Amendment 1
DRUG · 10919W405
|
2.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 2.9% | ||||
| Peter Kolchinsky | 2.9% | ||||
| Rajeev Shah | 2.9% | ||||
| RA Capital Healthcare Fund, L.P. | 2.9% | ||||
|
Avalo Therapeutics, Inc.
13G/A
Amendment 1
AVTX · 05338F306
|
9.9% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 9.9% | ||||
|
Verona Pharma plc
13G/A
Amendment 6
VRNA · 925050106
|
7.1% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 7.1% | ||||
| Peter Kolchinsky | 7.1% | ||||
| Rajeev Shah | 7.1% | ||||
| RA Capital Healthcare Fund, L.P. | 7.1% | ||||
|
Adagio Medical Holdings, Inc.
13G/A
Amendment 2
ADGM · 00534B100
|
7.2% |
5/15/2025
Event 3/31/2025
|
|||
| RA Capital Management, L.P. | 7.2% | ||||
| Peter Kolchinsky | 7.2% | ||||
| Rajeev Shah | 7.2% | ||||
| RA Capital Healthcare Fund, L.P. | 6.9% | ||||
|
Iteos Therapeutics, Inc.
13D/A
Amendment 2
ITOS · 46565G104
|
9.9% |
5/14/2025
Event 5/12/2025
|
|||
| RA Capital Management, L.P. | 9.9% | ||||
| Peter Kolchinsky | 9.9% | ||||
| Rajeev Shah | 9.9% | ||||
| RA Capital Healthcare Fund, L.P. | 8.4% | ||||
|
Werewolf Therapeutics, Inc.
13D/A
Amendment 6
HOWL · 95075A107
|
15.0% |
5/14/2025
Event 5/12/2025
|
|||
| RA Capital Management, L.P. | 15.0% | ||||
| Peter Kolchinsky | 15.0% | ||||
| Rajeev Shah | 15.0% | ||||
| RA Capital Healthcare Fund, L.P. | 13.9% | ||||
|
Lenz Therapeutics, Inc.
13D/A
Amendment 1
LENZ · 52635N103
|
15.1% |
5/9/2025
Event 5/7/2025
|
|||
| RA Capital Management, L.P. | 15.1% | ||||
| Peter Kolchinsky | 15.1% | ||||
| Rajeev Shah | 15.1% | ||||
| RA Capital Healthcare Fund, L.P. | 12.0% | ||||
|
Jade Biosciences, Inc.
13D/A
Amendment 4
JBIO · 008064206
|
4.1% |
4/30/2025
Event 4/28/2025
|
|||
| RA Capital Management, L.P. | 4.1% | ||||
| Peter Kolchinsky | 4.1% | ||||
| Rajeev Shah | 4.1% | ||||
| RA Capital Healthcare Fund, L.P. | 4.0% | ||||
|
Sutro Biopharma, Inc.
13G
STRO · 869367102
|
5.3% |
4/4/2025
Event 3/28/2025
|
|||
| RA Capital Management, L.P. | 5.3% | ||||
| Peter Kolchinsky | 5.3% | ||||
| Rajeev Shah | 5.3% | ||||
| RA Capital Healthcare Fund, L.P. | 5.3% | ||||
|
Acumen Pharmaceuticals, Inc.
13D/A
Amendment 3
ABOS · 00509G209
|
24.8% |
3/31/2025
Event 3/27/2025
|
|||
| RA Capital Management, L.P. | 24.8% | ||||
| Peter Kolchinsky | 24.8% | ||||
| Rajeev Shah | 24.8% | ||||
| RA Capital Healthcare Fund, L.P. | 21.5% | ||||